Relaxation of potassium-depolarized canine, bovine and porcine large coronary arteries by nitroglycerin, chromonar and two dihydropyridine calcium antagonists.
D000818:Animals; D002118:Calcium / Q000037:antagonists & inhibitors*; D002417:Cattle; D002866:Chromonar / Q000494:pharmacology; D003331:Coronary Vessels / Q000187:drug effects*; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D005260:Female; D066298:In Vitro Techniques; D008297:Male; D009126:Muscle Relaxation / Q000187:drug effects; D009543:Nifedipine / Q000031:analogs & derivatives / Q000494:pharmacology*; D005996:Nitroglycerin / Q000494:pharmacology*; D011188:Potassium / Q000494:pharmacology; D011725:Pyridines / Q000494:pharmacology*; D013552:Swine; D014665:Vasodilator Agents / Q000494:pharmacology*
D011725:Pyridines; D014665:Vasodilator Agents; C019137:FR 7534; D005996:Nitroglycerin; D009543:Nifedipine; D002866:Chromonar; D011188:Potassium; D002118:Calcium